12666266 has 8 divisors (see below), whose sum is σ = 19016640. Its totient is φ = 6327388.

The previous prime is 12666263. The next prime is 12666281. The reversal of 12666266 is 66266621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12666263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845 + ... + 5103.

It is an arithmetic number, because the mean of its divisors is an integer number (2377080).

Almost surely, 2^12666266 is an apocalyptic number.

12666266 is a deficient number, since it is larger than the sum of its proper divisors (6350374).

12666266 is a wasteful number, since it uses less digits than its factorization.

12666266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5748.

The product of its digits is 31104, while the sum is 35.

The square root of 12666266 is about 3558.9697947580. The cubic root of 12666266 is about 233.1038973728.

The spelling of 12666266 in words is "twelve million, six hundred sixty-six thousand, two hundred sixty-six".